When does BA release the bulkhead cot seats?

[yonasl]

On a recent trip I noticed the the bulkhead seats with infant cots that show as occupied (X) appear empty a few days before the flight. I suppose they keep them unavailable in case there are passengers with infants which makes sense. Any idea of when exactly can one book them if still free? (When I checked 48hrs before the flight they were free I believe but could be wrong)

[ChrisC]

Usually 72 hours before departure.

[yonasl]

ChrisC wrote:

Usually 72 hours before departure.

Thank you so much