How long y’all’s babies sleeping at night?

During the day my 8 week old won’t sleep more than 40-60 mins. At night 2- 2.5 hours at a time still 🥴 he was sleeping closer to 3-3.5 a few weeks back and I thought we were making progress but now it seems like we’re moving backwards. He’s EBF and eats every 2-3 hours during the day sometimes sooner, full feeds so I’m pretty sure he’s getting enough calories during the day. I’ve tried everything to get him to sleep longer stretches at night but I just feel so hopeless. I’m so sleep deprived and it’s been so stressful