1) If I sometimes wake up in the middle of the night, can I occasionally take something herbal to sleep on, e.g. based on valerian?

Yes, in your situation, the occasional use of a valerian-based herbal preparation may be allowed, after consultation with your doctor.

The amitriptyline you are taking is an antidepressant that is also used to treat insomnia. If this medication does not provide you with sufficient sleep quality, your doctor may consider adding short-term treatment with another sleeping preparation, such as

Valerin Forte: https://www.gdziepolek.pl/produkty/81230/valerin-forte-drazetki/apteki

2) Is half a tablet of Dobroson allowed if necessary?

In this case, it should be emphasized that Doborson is a prescription drug, so the legitimacy and need for its use should be determined by a doctor. If you do not have the opportunity to consult your doctor, you can use the teleconsultation here:
https://www.gdziepolek.pl/telekonsultacja

Doborson is a drug with hypnotic and sedative effects, as well as weak anxiolytic, anticonvulsant and skeletal muscle relaxant effects. Dobroson is intended for short-term use, for 2-4 weeks at most, due to the risk of addiction. Therefore, its use should be limited only to situations when insomnia is very severe and prevents normal functioning.

Amitriptyline and Dobroson should only be used together if they have been recommended by the same doctor or if the doctor has been aware of their use. As a result of concomitant use with Amitriptyline, the following symptoms may occur and worsen: daytime sleepiness, dizziness, impaired concentration, difficulty in assessing the situation and making decisions, as well as in performing intended movements.

If medications have been prescribed by different doctors, a consultation is advisable to determine whether these medications can be used at the same time and, if so, whether there is a need to change the dosage. In the case of such a combination, you should also avoid driving or performing other activities that require increased psychomotor activity. If these symptoms worsen or you experience any other reactions that you are concerned about, contact your doctor.

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https://www.gdziepolek.pl/artykuly/czy-przyjmowanie-kilku-lekow-jednoczesnie-jest-bezpieczne

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