Yes, you can sleep on a sofa bed every night, especially with modern designs. However, for long-term use it’s important to choose a high-quality model made for daily sleeping. Cheaper or traditional sofa beds often lack proper support, with thin or uneven mattresses that can lead to aches and disrupted sleep. If you plan to use yours nightly, look for a sturdy frame, a supportive foam or sprung mattress, and a durable mechanism built to handle frequent opening and closing.