

To piggyback on another comment. Massage. I’m a massage therapist who sees clients with disk issues all the time.
99% of the time it’s because of shortened hip flexors (your psoas attached to your bottom vertebrae and as it shortens, is too tight to let your spine stretch which then just crushes your disks) due to both extended time in a seated position as well as a weak core. Stretch, get a massage, find a PT to help with chronic back pain. Start doing crunches before bed.
Also drink more water. Only kinda related but basically everyone should be drinking more water.
Like the other response said, some light exercise before bed is generally good for sleep. If you feel it’s waking you up, your brain might already be in go-mode. Do you limit blue light or anything before bed?
If you still feel before bed is no good, or don’t have the time or whatever, literally anything is better than nothing.