Aim for at least 6 inches for comfort. Anything less will feel like sleeping on the floor slats.
Not all mattresses bend the same way. Check your frame type before buying: Folds once lengthwise (the most common type). futon mattress buying guide
💡 Always use a removable, machine-washable cover. It protects your investment from spills and dust, and it’s the easiest way to update your room’s style. To find the best options for your space, tell me: Your budget range ($100–$500+) The primary use (guest bed or daily sofa) The size you need (Twin, Full, or Queen) Aim for at least 6 inches for comfort