If you've never peed the bed and just suddenly started peeing the bed then it's not a good sign and could be caused by a medical condition that a doctor needs to check out and treat.
Sometimes you might just be wetting the bed from a simple UTI or urinary tract infection and other times you could have an overactive bladder or an enlarged prostate.
If the bed wetting continues longer than a week I would consult a doctor and get tested for bladder issues or other medical conditions.
If you want too you could wear adult diapers for the bed wetting which will keep your bed dry and your clothes clean and dry.
Diapers are much better than waking up in soaking wet clothes and it keeps your bed from getting pee on it which can be hard to get out.
Your doctor can also prescribe you some bed wetting medicines to help slow down the urine production and I would also recommend to stop drinking fluids about 1 hour to 2 hours before bed and go pee right before bed to have an empty bladder.