Better throw = longer sleep.
Sleep times from shortest to longest:
Wood Axle, Metal Axle, transaxle(fireball), ball bearing.
New users/novice users need to expect short sleep times. It’s the reality of the situation. It’s nothing to be concerned about. Get that throw straight. The only thing you can do to fix that is practice.
There are also other factors at play too:
For the most part, loopers/modified shaped yoyos such as the Raider and Fireball, typically don’t have as long of a sleep time as wing-shaped yoyos such as the Maverick. Also, many NEW yoyos may need to have their bearings cleaned imediately, and then after that they may need to be lightly lubed using thing lube. Well, loopers typically use thick lube because you need more responsiveness.
I have a Fireball, it’s OK. I have a pair of Raider EX’s, which I like a lot better. But you also have to consider what direction you want to go in for now and make appropriate purchases. If you’re going for looping tricks and the beginner stuff, for the most part there is no need to change what you’ve got right now. Once you get through the YYE Beginner tricks, you’ve got to decide “looping” or “string tricks”. Because if you’re going to go into Intermediate, Advanced and beyond, the yoyos you have aren’t going to work well for you, you will need to get a wing-shaped yoyo like the Maverick for example, but most of us will recommend something else, such as a Dark Magic II, Legacy II or something else similar.
It comes down to the right tool for the right job.
In the meantime, don’t stress over sleep times. If you can get through the trick, you’re good enough for now. The rest will come in time through practice.