Curious if this is a bpd-related thing or if it's just me

Most nights I fall asleep between 2am and 2:30 and I wake up either at 6:30 or 8. If I sleep any more than 7 hours, I end up dead tired all day. If I get 4-6 hours I feel awake, but my body is physically tired and low-energy all day. Does anyone else have this problem?