delivered the opinion of the court:
The State charged defendant, Jeremy I. Calhoun, with aggravated battery of a child (720 ILCS 5/12 — 4.3(a) (West 2004)). The child, defendant’s two-month-old son, was taken to the hospital. After medical examinations were performed on the child, the hospital personnel discovered old and new hemorrhages on the child’s brain, suspected he was the victim of shaken-baby syndrome, and contacted the police. Police officers responded to the hospital where they met with defendant. The officers took defendant to the police station for an interview, stopping at defendant’s residence to familiarize themselves with the conditions of the home.
At the police station, defendant initially provided several possible explanations of how the child was injured, none of which included him shaking the child. Later during the interview, defendant admitted he had shaken the child “a little.” Following defendant’s admission, the interviewing officer gave defendant Miranda warnings. See Miranda v. Arizona, 384 U.S. 436, 16 L. Ed. 2d 694, 86 S. Ct. 1602 (1966). The officer told defendant the questioning had progressed from an “interview” to an “interrogation.” Defendant again admitted that he was responsible for the child’s injuries, and he explained how those injuries were inflicted. He also admitted that he had shaken the child on at least one prior occasion. On defendant’s motion, the trial court suppressed the post -Miranda statements. The State appeals, and we reverse.
I. BACKGROUND
Rick Dhabalt, a detective with the Springfield police department, testified to the following facts. On September 24, 2005, he responded *1142to St. John’s Hospital for a “shaken baby” call. There, he met with defendant, the baby’s father. He spoke with defendant for approximately 10 minutes at the hospital, and then they proceeded to the police station for an interview. Detective Dhabalt wanted to interview those at the hospital, including defendant; Amber, the baby’s mother; and Mark Calhoun, the baby’s paternal grandfather. He interviewed defendant first only because defendant said he had to go to work later that evening. According to Dhabalt, defendant was not considered a suspect. Defendant rode in the front passenger seat of Dhabalt’s police car to the police station. On the way, they stopped at defendant’s residence because Dhabalt said he wanted to “take a look at the house” before interviewing witnesses. Defendant voluntarily led Dhabalt through the residence, a duplex where he, Amber, and the child resided. Mark lived next door in the adjoining unit.
After leaving the residence, the two proceeded into an interview at the police station. Defendant was not handcuffed, was not under arrest, and had not been issued Miranda warnings. Detective Jeremy T. Wooldridge joined them in the interview room. A recording and a transcript of the interview were made and admitted into evidence. The interview began at 7:18 p.m. and ended at 7:50 p.m. Approximately 15 to 20 minutes into the interview, Detective Dhabalt said he asked defendant if he shook the baby and defendant responded: “A little.” Dhabalt testified:
“I started to say a couple of things, but [defendant] kept interrupting me and asking me some questions in reference to what was going to happen *** but I made several attempts, and I finally had to stop him and tell him the process that we were going through, that the nature of the interview had changed and that I had to read him his Miranda warnings.”
Dhabalt said that after he advised defendant of his Miranda rights, defendant continued speaking about “the nature of this case.” Dha-balt said defendant told him he had shaken the baby once or twice before but he could not remember when. Defendant was arrested and taken to jail.
Detective Wooldridge also testified at the hearing and corroborated Detective Dhabalt’s testimony with regard to defendant’s interview.
The trial court indicated that it had watched the digital video disc (DVD) recording of the interview sometime before the hearing. The court also reviewed the transcript of the interview. Because the State claims the court’s “apparent recall of the interview was clearly inaccurate, and the trial court erred by relying on defense counsel’s disingenuous characterization of the interview,” we viewed the DVD and reviewed the transcript of defendant’s interview. According to the *1143transcript, Detective Dhabalt repeatedly asked defendant if he understood his Miranda rights as they were being read to him. Because defendant never verbally acknowledged that he understood his rights, the transcript fails to indicate any affirmation to that effect.
Our review of the DVD indicates that although defendant did not say he understood, he nodded affirmatively each time that Detective Dhabalt asked him if he understood. The following is the relevant excerpt from the recorded interview:
“DHABALT: You have the right to remain silent. Do you understand that? [Defendant nodded.] Anything you say can and will be used against you in a court of law. Do you understand that? [Defendant nodded.] You have a right to talk to a lawyer and have him present with you while you are being questioned. Do you understand that? [Defendant nodded.] If you cannot afford to hire a lawyer, one will be appointed to represent you before any questioning, if you wish. Do you understand that? [Defendant nodded.] You can decide at any time to exercise these rights and not answer any questions or make any statements. Okay, do you understand that? [Defendant nodded.]
DEFENDANT: Are you guys going to arrest me?”
The interrogation continues with defendant saying:
“I don’t, I don’t want it to look bad on her. I know I did it, but I don’t want to lose my child and I don’t want her to lose the child. It’s going to devastate her, it’s going to devastate me. I really didn’t mean to do it, I wasn’t thinking cause I was angry. *** I’m just tired, cranky, and just did it without thinking. When I realized what I did it was already too late.
* * *
Right before I went and got her [(Amber)] is when I did it.
* * *
I wasn’t shaking him violently; I just shook him like [defendant demonstrates a straight-arm forward and backward shaking motion],
* * *
Not as hard as I could, but yes.
^ ^ ^
Oh, five or six times before I realized what I was doing and I put him down.
íjí ij*
I don’t know, I’ve only done it once or twice.”
The State rested.
Mark Calhoun, defendant’s father, testified on defendant’s behalf. He said he was at the hospital with Amber and defendant when Detec*1144tive Dhabalt arrived. Dhabalt indicated that he wanted to interview each of them and agreed to start with defendant because defendant had to report to work. The detective asked defendant to accompany him to the police station for an interview and gave him directions on how to get there. Mark told Dhabalt that defendant was not familiar with Springfield, so Dhabalt offered defendant a ride and defendant agreed. When asked if he felt defendant had a choice whether to accompany Detective Dhabalt, Calhoun said, “He was very persistent in trying to get [defendant] up there.”
Defendant testified that prior to Dhabalt’s arrival at the hospital, defendant had given statements to various doctors, social workers, and police officers. In those statements, defendant offered several possibilities of how the child’s injuries had occurred. Defendant did not admit to shaking the child but thought maybe the dog “tripped on him” or that the child had “hit his head too hard on the table.”
Defendant testified that he felt he had no choice with regard to (1) riding with Dhabalt to the police station, (2) allowing Dhabalt access to his residence, (3) answering Dhabalt’s questions while in the house, or (4) agreeing to be interviewed at the police station. However, defendant said that throughout the course of the police interview, he still expected that he would be going to work that evening. Defendant said he was never told that he was not obligated to speak with either detective or that he was free to leave. He said he and Dhabalt entered the police station through a nonpublic entrance in the back of the station and that the officer had to unlock the door to gain entry. Defendant said he was not handcuffed until “the very end.” He said in the interrogation room, Detective Wooldridge was sitting by the door during the interview. Defendant said before he was given his Miranda warnings, the detectives asked him “multiple times” if he shook the child, to which defendant answered “no.” Defendant said he had never before been charged with a crime or interrogated by the police.
Defendant testified that he eventually admitted he shook the child “[b]ecause [he] didn’t believe they would let [him] go until they told— until [he] told them what they wanted to hear.” Prior to his admission, defendant said the detectives “seemed pushy and aggravated and rushing.” After defendant admitted shaking the child, Detective Dha-balt read him his Miranda warning, but defendant did not recall signing a waiver of his rights. Without hesitation, the detectives continued their interrogation, and defendant explained exactly how he had shaken the baby.
On cross-examination, defendant said he had a high-school education with no college experience. He was considered a special-education *1145student in high school. He said that during the police interview, the detectives did not physically threaten or mentally abuse him. The assistant State’s Attorney then asked defendant the following:
“Q. So is it your testimony, sir, that it was your belief that if you confessed to a falsehood, that you would be released?
A. Yes.”
At the close of the hearing, the trial court allowed the parties time to file briefs in support of their positions. On March 6, 2007, the parties presented their arguments, and the court announced its ruling. The court found defendant was not in custody when he made the first admission that he shook the child “a little.” Thus, the court denied defendant’s motion to suppress with regard to his pre-Miranda statement. As to the post -Miranda statements, the court granted defendant’s motion, finding that defendant was in custody at the time, but there was no indication that defendant understood the Miranda warnings or that he expressly waived his rights. The court also found a Seibert violation (Missouri v. Seibert, 542 U.S. 600, 159 L. Ed. 2d 643, 124 S. Ct. 2601 (2004) (plurality op.)) with regard to the post -Miranda statements. This appeal followed.
II. ANALYSIS
The State claims that defendant’s post -Miranda statements should not be suppressed because it was clear that he made the statements after acknowledging that he understood his rights. The State argues that defendant’s nodding in response to Dhabalt’s inquiries constituted affirmative acknowledgments of his rights, and thus any statements he made after being read his rights constitute knowing and voluntary admissions.
A. Standard of Review
When reviewing a motion to suppress evidence, we are faced with a dual standard of review. We will reverse the trial court’s findings of fact only if they are against the manifest weight of the evidence. People v. Pitman, 211 Ill. 2d 502, 512, 813 N.E.2d 93, 100 (2004). “This deferential standard of review is grounded in the reality that the [trial] court is in a superior position to determine and weigh the credibility of the witnesses, observe the witnesses’ demeanor, and resolve conflicts in their testimony.” Pitman, 211 Ill. 2d at 512, 813 N.E.2d at 100-01. However, we consider the ultimate legal question of whether the confession should be suppressed de novo. Pitman, 211 Ill. 2d at 512, 813 N.E.2d at 101.
B. Seibert Analysis
The question is whether Miranda requires the suppression of *1146defendant’s second confession — that is, his second admission that he shook the child, after Miranda warnings. The parties seem to disagree that the answer to that question is to be found in Seibert. In Seibert, the police intentionally withheld Miranda warnings hoping to achieve a confession. Their plan worked in that Seibert confessed to the crime while in police custody without the benefit of Miranda warnings. The officer’s plan was to cure the constitutional defect by giving the Miranda warnings and then eliciting the same confession after the warnings. The officer admitted that his plan was to “question first, [and] then give the warnings, and then repeat the question ‘until [he] g[o]t the answer that [she had] already provided once.’ [Citation.]” Seibert, 542 U.S. at 606, 159 L. Ed. 2d at 651, 124 S. Ct. at 2606. In a plurality opinion, the Supreme Court set forth a multifactor test for determining the admissibility of a second confession. Seibert, 542 U.S. at 615, 159 L. Ed. 2d at 657, 124 S. Ct. at 2612.
1. Trial Court’s Finding of Fact
We agree with the State and find that Seibert does not apply to this case. The holding in Seibert applies to a two-step interrogation process, which is an interrogation process when the defendant is in police custody during all questioning. Here, the trial court found that defendant was not in police custody when he first confessed, and it therefore denied defendant’s motion to suppress his pre-Miranda statements on that basis. Although the denial of that motion is not an appealable judgment, defendant, as appellee, is free to challenge the factual finding that he was not in custody when making his preMiranda statement. And, indeed, he does challenge that finding in the context of his argument for affirming the suppression of his second confession pursuant to Seibert. An appellee is not limited to the trial court’s rationale but may argue for affirmance on any basis in the record. People v. Reed, 298 Ill. App. 3d 285, 295, 698 N.E.2d 620, 628 (1998).
Whether a defendant was in custody so as to require Miranda warnings is a question of fact (People v. Foster, 195 Ill. App. 3d 926, 943, 552 N.E.2d 1112, 1125 (1990)), and as we have discussed, our standard of review as to questions of fact is deferential (Pitman, 211 Ill. 2d at 512, 813 N.E.2d at 100-01). In determining whether an interrogation was custodial, the trier of fact will scrutinize the objective circumstances surrounding the questioning and ask “what a reasonable man innocent of any crime would perceive.” People v. Berry, 123 Ill. App. 3d 1042, 1046, 463 N.E.2d 1044, 1048 (1984). The trier of fact should consider the following factors: (1) the place of the interrogation, (2) statements or nonverbal conduct indicating that the
*1147defendant was not free to leave, (3) the extent of the police officers’ knowledge and the focus of their investigation, and (4) the officers’ intentions. Berry, 123 Ill. App. 3d at 1046, 463 N.E.2d at 1048. However, the trier of fact should consider the subjective intent of the officers only to determine whether the officers’ behavior was consistent with their purported intent, and whether, by their behavior, they created a coercive atmosphere. Otherwise, the inquiry should focus on what the defendant thought and believed. People v. Gorman, 207 Ill. App. 3d 461, 472-73, 565 N.E.2d 1349, 1356 (1991).
Defendant argues that an interrogation room in a police station is “inherently coercive,” but we are aware of no case holding that the place of the interview, by itself, is dispositive. The police never told defendant he had to remain in the interrogation room, and before he made an incriminating statement, they never physically obstructed him from leaving. Throughout the pr e-Miranda interview, defendant said he expected he would be going to work that evening — suggesting that he did not consider himself to be under arrest. Initially, the police had no probable cause to arrest defendant, and he was not a suspect. Evidently, the understanding was that defendant would come for an interview by his own free choice, for the police gave him directions to the police station. He preferred riding with the police because he did not know his way around Springfield. The finding that he was not in custody during his pr e-Miranda statement is not against the manifest weight of the evidence.
2. Application of Seibert in Light of Finding of Fact
After defendant was advised of his Miranda rights (after he admitted to shaking the baby “a little”), the witness-interview procedure progressed into a suspect-interrogation process. From that point forward and not before, defendant was in police custody. We find that the trial court’s findings that (1) defendant was not in police custody prior to the Miranda warnings, and (2) a Seibert violation occurred in this case are inconsistent with each other. Because defendant’s custodial interrogation did not begin until Miranda warnings were given, a Seibert violation could not have occurred. Thus, the police here did not follow the deliberate custodial two-step interrogation strategy employed in Seibert.
C. Whether Defendant Knowingly Waived His Right To Remain Silent
The question is whether defendant voluntarily and knowingly relinquished his rights when he admitted that on the day the child was injured, he had picked up the child from his infant seat and shook him five or six times like he had done once or twice in the past. The *1148trial court found defendant’s post-Miranda statements were not voluntary because the State had failed to prove that defendant affirmatively acknowledged that he understood the Miranda warnings.
“It is the burden of the State to show that the accused knowingly and voluntarily waived his right to remain silent before an accused’s statement can be admitted into evidence. [Citations.] A waiver may be either express or implied, but waiver will not be implied either from a silent record or from the fact that the defendant made statements.” People v. Brown, 146 Ill. App. 3d 101, 104-05, 496 N.E.2d 1020, 1022 (1986) (the “defendant’s nod constituted an express relinquishment of his right to remain silent”); see also People v. Crane, 145 Ill. 2d 520, 530, 585 N.E.2d 99, 103 (1991) (“[defendant, in response to being asked if he understood the Miranda warnings and if he wished to talk, nodded affirmatively. This is evidence that defendant knowingly and voluntarily waived his right to remain silent”).
The recorded interview clearly shows that defendant nodded affirmatively throughout the reading of his Miranda warnings. After being read each individual warning, defendant was asked if he understood it. Each time, he nodded. After being read all of the warnings, defendant proceeded to describe in detail how and why he shook the child. Despite the great deference afforded the trial court in terms of its superior position to determine and weigh the credibility of the witnesses, observe the witnesses’ demeanor, and resolve conflicts in their testimony, we find that the DVD of defendant’s interrogation clearly shows defendant’s voluntary relinquishment of his right to remain silent. We find that on this record, the basis of the court’s ruling (that there was no indication that defendant understood his Miranda warnings) was against the manifest weight of the evidence.
III. CONCLUSION
For the foregoing reasons, we reverse the trial court’s order suppressing defendant’s post -Miranda admission.
Reversed.
McCullough, j., concurs.