The idiom 'put something to bed' means to deal with something or address a matter in a way so that it is considered finished or completed. You will often hear this phrase used when talking about rumours. If you 'put a rumour to bed' it means to stop misinformation spreading by confirming what is true.

1. We should focus on putting this silly dispute between us to bed rather than continuously finding ways to undermine each other.
2. Taking our daughter to visit the school really put our concerns to bed. The teachers and staff were so understanding.

1. The boss got all the staff together in the conference room to put to bed rumours that job cuts were imminent.
2. Now that this issue has finally been put to bed, hopefully there will be no more setbacks.