Has anyone here ever paid for a sleep consultant? What did they do? How much? Was it worth it/did it work?

I think I am going nuts stressing myself out over K's sleep. It has been declining this week. The last 3 days tallies of TOTAL NAPS: 50 min., 45 min., 27 min. I wanna cry!

I think it's a major combo of milestones, teething, and wonder week (month) - but I wonder if we need professional help.