no less (so) than

no less (so) than

What does that mean?

'no less (so than)...' which is also similar to 'no more (so) than'.

A and B are basically the same. No more different no less different. They are same. 

For example , 

McDonald’s hamburgers are no more delicious than Burger King hamburgers.

McDonald's hamburgers are no less delicious than Burger King hamburgers.

McDonald's hamburgers are delicious just as much as Burger King hamburgers.

Here is dialogue.

A : I'm trying to sleep less these days. 

B : Why? Sleep is important. No less so than food and water. 

A : But I wanna start exercising. 

B : Great, but don't reduce your sleep. 

A: 나 요즘 조금자려구 노력하구 있어.
B: 왜? 잠은 중요해. 음식이나 물만큼 중요하다구.
A: 그치만 나 운동시작하구 싶어.
B: 좋지만 잠을 줄이지는 마.