All foods have some calories. No food is actually "negative calorie food". BUT the overall effect of certain foods in our body is that of "negative calories". Negative calorie foods said to be good for weight loss.
Children's Bed - Looks Like A Little House Headboard . instructions seem to be in Dutch, you can try translating it into English but you get the idea for a cute bed that you could copy from the picture and the dimensions of a twin size bed.