I bought this for my child's events, but ended up storing it without using it. I opened it up and spread it out to air it out for inspection, but I haven't used it as a sleeping bag. It's been about 3 years, so there might be some minor stains, but please be understanding of the small details. It's rated for a comfort temperature of 15°C or higher, so I think it's suitable for spring and summer. Type...Envelope type Features...Suitable for 3 seasons (spring to autumn) Features...Suitable for summer