2 inches box spring mattress support - hayley collection twin2 inches box spring mattress support hayley collection twin Durable twin size box spring for optimal mattress support Ensure your twin mattress stays firm and well supported with the Hayley Collection 2 inch box spring. This flat foundation enhances mattress stability, prevents sagging, and extends mattress life. Built with high quality wood and fabric, it provides even weight distribution for a restful sleep. Perfect for everyday use, guest rooms, or