Best sleeper sofas under $650

Top pick: Modern Heritage Aviemore 2-Seater Queen Sleeper with Memory Foam Mattress. A real queen memory-foam mattress is what separates a sleeper sofa guests actually sleep on from one they merely tolerate, and this is the only pick here built around that. It's a proper two-seater sofa first, so it earns its place in a living room year-round.

Who the others suit:

• Muumblus Queen Pull-Out with Memory Foam — the same queen-plus-memory-foam idea in a three-seat, darker gray frame; better if you need more seating and a more forgiving fabric.
• LLappuil Loveseat Pull-Out, Queen — a compact loveseat footprint that still opens to a queen; good for a small guest room or apartment.
• Anpport 3-in-1 Convertible Loveseat — the budget-friendly small-space choice: adjustable back, easy pull-out, best where the sofa is mostly seating and the bed is occasional.
• BSHTI Corduroy L-Shaped Pull-Out with Storage Chaise — pick this if storage and a chaise matter more than mattress quality; it's a sectional first, sleeper second.

Before you buy: check the open length against your room, confirm the mattress thickness (thin foam is the usual weak point at this level), and expect assembly. Skip anything listed as non-standard bed size if you'll want standard sheets.