Twin mattress dimensions and shopping guide
A Twin mattress is approximately 38 inches wide and 75 inches long. It fits one sleeper and can help preserve floor space in a smaller bedroom. Check the bed frame’s inside dimensions and the mattress’s finished size before ordering.
Choosing a Twin for a child or guest room
Match the feel to the person using the bed. A guest bed may need a balanced feel for different visitors, while an everyday bed should suit its regular sleeper’s preferred cushioning and support. Mattress height also matters for getting into bed and fitting sheets.
Value and guest-room mattresses · Side-sleeper comfort
Compare nearby mattress sizes
See the complete mattress size chart.
Choose your size before comparing prices
Open a mattress above and select Twin to see its current price and available options. Product-card starting prices may represent a smaller size. Finished dimensions, height and availability vary by model.
Will any Twin mattress fit a bunk or trundle bed?
No. Verify the bed manufacturer’s permitted mattress dimensions, height and weight. For bunks, follow its guardrail and mattress-thickness requirements; for trundles, check clearance beneath the main bed.
Shop online or compare selected models at our Magnolia, Huntsville, Montgomery and New Caney showrooms. Call ahead for a specific display. Read delivery and setup options and the written comfort-exchange terms before ordering.