As a new revert, do Muslims ever struggle with sleep because of prayer times?

I think there's a Quran verse saying prayer is better than sleep – not totally sure, but it's a lovely saying anyway. But during summer, I've been thinking about how far apart the prayers are, especially trying to pray Isha and then get up for Fajr early. What do people do after Fajr? I'm planning to pray it for the first time in the morning, insha'Allah. I'm worried if I sleep after Fajr, I might fall into a deep sleep and miss work or stuff – do some people go back to sleep after? Also, can you adjust Fajr timing to fit your routine, like praying it earlier or later? It'll vary for everyone, but I'd love to hear what others do! JazakAllah khair.