I've have spent so many hours scouring the internet looking for the ultimate back carrier & I still can't decide! I've read the review section & the previous message & the Bushbaby seems a hot favourite, but my ds sleeps alot when out & the Bushbaby & many others I've looked at don't seem high at the back to support his head/neck. The GS60/GS90 appears to be higher, does anyone out there have one of these? Any comments about carriers and sleeping babies welcome! Unfortunately it seems we don't have many outlets near us (Leicester) to go and have a look at a good range of different products.