I had such a nice deep sleep, I felt great this morning.
I slept really well last night. I felt like a new woman this morning.
I slept like a baby last night so I was well rested when I woke up this morning.
「ぐっすり眠る」は
ー I had such a nice deep sleep
deep sleep で「熟睡」
ー I slept really well
「よく寝た」
ー I slept like a baby
「赤ちゃんみたいに寝た」赤ちゃんはぐっすり寝るのでこの表現があります。
「今朝は元気です」は
ー I felt great this morning
feel great「気分がいい」
ー I felt like a new woman this morning
feel like a new woman / new man は「生き返った気分」という表現
ー I was well-rested when I woke up this morning
well-rested 「しっかり休む」
ご参考まで!
I slept really well, so I'm feeling very energetic this morning!
I slept really well, so I'm feeling very energetic this morning! (私はぐっすり眠れたので、今朝はとても元気ですよ!)
他にも、
I had a good night's sleep, so I'm full of energy this morning! (良い睡眠をとったので、今朝はエネルギーが満ちています!)
I slept soundly last night, so I'm very refreshed today. (昨夜はぐっすり寝たので、今日はとても爽快です。)