What size mattresses fit a double over double bunk bed? A double over double bunk bed requires two standard full-size mattresses (54" x 75"). The Canadian Paediatric Society recommends bunk beds only for children over 6 years old and specifies that upper-bunk guardrails must extend at least 5 inches above the mattress surface on all sides. Last updated: February 25, 2026 MATTRESSES SOLD SEPARATELY: This bunk bed frame does not include mattresses. You'll need 2 double mattresses. See our double mattress collection. We recommend 8" mattress thickness for proper guardrail safety. Double Over Double Bunk Bed - Maximum Sleeping Space Hi. Brad from Mattress Miracle. The Double Over Double bunk bed is good for large families, vacation homes, or guest rooms where you need maximum sleeping capacity. Each level comfortably sleeps 2 people - 4 total. Maximum Capacity Features Double Beds Top & Bottom: Sleep 2 per level Heavy-Duty Construction: Reinforced for weight capacity Full-Length Guardrails: Complete top bunk safety Wide Ladder Access: Safe climbing for all ages Adult-Sized Bunks: Comfortable for grown-ups Good For Large families: Sleep 4 in one footprint Cottages & cabins: Guest-ready year-round Rental properties: Maximize sleeping capacity Sleepovers: Host multiple kids comfortably What You'll Need Complete your setup: 2 Double Mattresses (8" height recommended for safety) 2 Double Sheet Sets 2 Waterproof Mattress Protectors Customer Feedback "Good for our cottage. Brad helped us pick the double-over-double. Sleeps 4 comfortably, and the construction is solid." - Customer, Paris, ON Frequently Asked Questions Can adults use both bunks?Yes. Both bunks are double-sized and designed with weight capacity for adults. Top bunk: 400lbs, Bottom bunk: 400lbs. How much space does this take up?Footprint is same as a regular double bed (approximately 54" × 75"), but you get sleeping space for 4 people. Is the top bunk safe for adults?Yes, with proper mattress height (8" maximum) the guardrails provide adequate protection. Always use caution when climbing. Do you deliver and assemble?Yes. Professional delivery and assembly available. This is a heavy piece - we recommend professional setup. Call 519-770-0001. Visit Our Showroom Mattress Miracle441 1/2 West St, BrantfordBrad's expertise: 519-770-0001 See the Double Over Double in person. I'll show you why this is the ultimate space-saving sleep solution for large families. Common Questions About This Product How much weight can double over double bunk hold? Check specific capacity. Usually 250-400 lbs per bed. Both full/double size means heavier capacity needed. Important for teens or adults. Safety first - know weights. Ask Brad for ratings. 519-770-0001. Why choose double over double instead of twin bunks? More sleeping space. Growing kids need room. Teens appreciate double bed. May accommodate adults. Bigger footprint than twin bunks. Great for siblings sharing long-term. Is double over double too big for small bedrooms? Double bunks are bigger. Measure room carefully. Need space for bulk. May overwhelm small rooms. Good for larger kids' rooms. Measure twice, buy once. Visualize at 441 1/2 West St. Can adults sleep on both beds? Check weight capacity. Many double-over-double bunks support adults on both. Quality construction essential. Test stability at showroom. Great for cottages or guest rooms. What mattress size for double over double? Full/double mattresses - 54 inches wide. Standard size. Check height limits - usually 6-8 inches max. Need clearance between beds. Mattress Miracle helps choose safe heights. Can double over double separate into two beds? Some models yes. Check this one with Brad. Separable adds flexibility. 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