The combination of green tea memory foam and high-density foam provides full body support for a great night's sleep. Antimicrobial properties in green tea makes it a great choice for those with asthma or allergies and the Certi - PUR-US foam is primed for durability and performance, making sweet dreams ever so closer. Features: -Combination of green tea memory foam & high density foam.-Certi - PUR-US foam for durability, performance, & content.-Firm feel provides full body support for a great night's sleep.-Anti-microbial properties make it a good choice for those with asthma or skin sensitivities.-Size (Size: Double): Double.-Size (Size: Queen): Queen.-Size (Size: Single): Single.-Size (Size: King Single): King Single.-Comfort Level: Firm.-Age: Adult; Kids.-Construction: Memory Foam; Foam -Construction Details: 5cm green tea memory foam, 5cm airflow high-density foam, 10cm high-density base support foam..-Mattress Top: Tight Top -Mattress Top Details: High density foam..-Edge Support: No.-Motion Isolation: Yes.-Breathable: Yes.-Removable Cover: No.-Hypo-allergenic: Yes.-Handles: No.-Box Contents: 1 x mattress -Box Content Details: Compressed, rolled & packed in a single carton.-Mattress in a Box: Yes..-Recycled Content: No -Recycled Content Details: ..-Care Instructions: Use mattress protector; Wipe clean with a damp cloth -Care Instructions Details: Use of mattress protector is recommended; clean with warm soapy water & damp cloth..-Additional Instructions: Mattress may take up to 48 hours for full expansion but can be slept on after unpacking.-Collection: Helena. - PUR-US Certified: Yes.-Consumer Advice: WARNING: Ensure no children or pets are close to the mattress when opening. Take care when opening the plastic packaging as the mattress may open quickly. Instructions for opening 1. Place the box on a flat surface 2. Carefully cut the outer bag (do not use a knife) 3. Unroll the compressed mattress and remove the plastic bag 4. Allow 48 hours for the mattress to expand. - Dimensions: -Overall Length - Top to Bottom (Size: Double): 190.-Overall Length - Top to Bottom (Size: Queen): 203.-Overall Length - Top to Bottom (Size: Single): 190.-Overall Length - Top to Bottom (Size: King Single): 203.-Overall Width - Side to Side (Size: Double): 138.-Overall Width - Side to Side (Size: Queen): 152.-Overall Width - Side to Side (Size: Single): 91.-Overall Width - Side to Side (Size: King Single): 105.-Overall Thickness (Size: Double): 20.-Overall Thickness (Size: Queen): 20.-Overall Thickness (Size: Single): 20.-Overall Thickness (Size: King Single): 20.-Overall Product Weight (Size: Double): 15.05.-Overall Product Weight (Size: Queen): 17.56.-Overall Product Weight (Size: Single): 10.05.-Overall Product Weight (Size: King Single): 17. Assembly: -Assembly Required: Yes -Type of Assembly: Minimal.-Recommended Persons Required for Assembly: 2.-Tools required & NOT provided: .-Assembly Details: Take out of carton, unroll onto bed surface & gently cut plastic to allow the mattress expand..