I think I'll go upstairs and have a sleep.

我想上楼去睡一觉.

《现代汉英综合大词典》

Have a sleep on it, John, before you do anything.

睡一晚再作决定吧, 约翰, 不要马上采取什么行动.

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The children usually have a sleep in the afternoon.

通常孩子们下午会午睡一会儿.

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I sometimes have a sleep in the afternoon.

我有时睡午觉.

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If you observe from your backyard your neighbor's dog will have a sleep disorder.

如果你在你家的后院观测,那么你邻居家的狗会彻夜不眠.

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I'd like to have a sleep. Would you please close the window shade?

我想睡个觉, 可以请你把窗户关上吗?

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