do not recommend to buy. its light and compact, no doubt. and it's cold. i think comfort zone lays in-between +15..+22C. instead of spending 30 usd you can get a proven sleeping bag of a 2nd level brand at about 50 usd. and i would do so.
not worth of money spent. really very light sleeping bag for warm summer weather. claimed comfort temperature is +15C (in contrast to the description of the product mentioning +8...+15) and the ultimately thin filling could help at +15, not +8 do not recommend to buy at that price i'd spend 15 USD max!