The approximate weight of each Birch mattress can be found below:
Birch Kids Natural Mattress
Twin: 55 lbs
Full: 70 lbs
Birch Natural Mattress
Twin: 63 lbs
Twin XL: 67 lbs
Full: 87 lbs
Queen: 105 lbs
King: 131 lbs
CA King: 130 lbs
Birch Luxe Natural Mattress
Twin: 80 lbs
Twin XL: 85 lbs
Full: 105 lbs
Queen: 120 lbs
King: 145 lbs
CA King: 145 lbs
Birch Elite Natural Mattress
Twin: 94 lbs
Twin XL: 102 lbs
Full: 126 lbs
Queen: 153 lbs
King: 187 lbs
CA King: 186 lbs