Billy Holland says Munster need to bounce back straight away after their first defeat since December against Scarlets last weekend.
The 31-year-old Ireland international played all 80 minutes as Munster let a 21-6 half-time lead slip, to lose 30-21 at Thomond Park - just their second defeat in 17 matches since they beat Glasgow Warriors in the Champions Cup back in October.
"We sat back. We rested on our laurels a little bit. We were close to getting a bonus point, a fourth try and next thing you know, they score three tries in 15 minutes of the second half and their tails are up and we found it difficult to register a score again," said Holland, who recently earned his 150th Munster cap.
Munster are still just two points off the lead in third in the Pro12, but they face a difficult trip to take on Cardiff Blues at Cardiff Arms Park tomorrow, and Holland knows they cannot play like they did last Friday again.
"Irrelevant of the result, we always look back at a game and judge it on the performance. There have been a few games where we have won games in the last few minutes over the season," said Holland.
"You just have to look back at the Ospreys game. For the first 20 minutes against the Ospreys we were awful and we were told all about that last week.
"Yes, we showed great character, but you cannot afford to do that. Maybe for 40 minutes we were good against the Scarlets and in the last 5-10 minutes we played quiet well too.
"We just made a few crucial errors.
"We were sound asleep at the steering wheel for 15-20 minutes and against a team of the Scarlets' quality, you are not going to survive that."