Twin, or “single”, mattresses are ideal for kids' bedrooms, or rooms with bunk beds or day beds. A Serta twin mattress measures approximately 38" x 74.5".
Full, or "double", mattresses are great for your child’s room since the extra width compared to a twin mattress means your child will have more room to stretch as he/she grows. A Serta full mattress measures approximately 53" x 74.5".
Queen mattresses are a very popular choice for both the master bedroom and guest rooms as these mattresses can comfortably fit two sleepers. A Serta queen mattress measures approximately 60" x 79.5".
King mattresses are a great solution for the master bedroom, as the extra room can create a more luxurious sleep experience. Select Serta mattress models are available in California King as well. A Serta king mattress measures approximately 76" x 79.5". California king mattress measures approximately 72" x 83.5".