What was signifcance of no animal shall sleep in a bed in Animal Farm?

it says it below no animal shall come to resemble man

"I have little more to say. I merely repeat, remember always your duty of

enmity towards Man and all his ways. Whatever goes upon two legs is an

enemy. Whatever goes upon four legs, or has wings, is a friend. And

remember also that in fighting against Man, we must not come to resemble

him. Even when you have conquered him, do not adopt his vices. No animal

must ever live in a house, or sleep in a bed, or wear clothes, or drink

alcohol, or smoke tobacco, or touch money, or engage in trade. All the

habits of Man are evil. And, above all, no animal must ever tyrannise over

his own kind. Weak or strong, clever or simple, we are all brothers. No

animal must ever kill any other animal. All animals are equal."