I’ve had this bed frame for a few months now and I can’t emphasis enough how great it is! The quality is top notch for the price. I haven’t had any issues with squeaking or movement when sitting/laying on the bed (must note that it sits on a carpet surface). My twin mattress fits perfectly within the frame. Would definitely recommend this if you are looking for a daybed frame that could pass as a sofa. Mattress is 13.5” high (I recommend an extra firm mattress if you want to sit up with a supported sofa feel).